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Diffstat (limited to 'kpdf/xpdf/xpdf/Page.cc')
-rw-r--r-- | kpdf/xpdf/xpdf/Page.cc | 558 |
1 files changed, 0 insertions, 558 deletions
diff --git a/kpdf/xpdf/xpdf/Page.cc b/kpdf/xpdf/xpdf/Page.cc deleted file mode 100644 index cfeab88b..00000000 --- a/kpdf/xpdf/xpdf/Page.cc +++ /dev/null @@ -1,558 +0,0 @@ -//======================================================================== -// -// Page.cc -// -// Copyright 1996-2007 Glyph & Cog, LLC -// -//======================================================================== - -#include <aconf.h> - -#ifdef USE_GCC_PRAGMAS -#pragma implementation -#endif - -#include <stddef.h> -#include "GlobalParams.h" -#include "Object.h" -#include "Array.h" -#include "Dict.h" -#include "XRef.h" -#include "Link.h" -#include "OutputDev.h" -#ifndef PDF_PARSER_ONLY -#include "Gfx.h" -#include "GfxState.h" -#include "Annot.h" -#endif -#include "Error.h" -#include "Catalog.h" -#include "Page.h" - -//------------------------------------------------------------------------ -// PDFRectangle -//------------------------------------------------------------------------ - -void PDFRectangle::clipTo(PDFRectangle *rect) { - if (x1 < rect->x1) { - x1 = rect->x1; - } else if (x1 > rect->x2) { - x1 = rect->x2; - } - if (x2 < rect->x1) { - x2 = rect->x1; - } else if (x2 > rect->x2) { - x2 = rect->x2; - } - if (y1 < rect->y1) { - y1 = rect->y1; - } else if (y1 > rect->y2) { - y1 = rect->y2; - } - if (y2 < rect->y1) { - y2 = rect->y1; - } else if (y2 > rect->y2) { - y2 = rect->y2; - } -} - -//------------------------------------------------------------------------ -// PageAttrs -//------------------------------------------------------------------------ - -PageAttrs::PageAttrs(PageAttrs *attrs, Dict *dict) { - Object obj1; - - // get old/default values - if (attrs) { - mediaBox = attrs->mediaBox; - cropBox = attrs->cropBox; - haveCropBox = attrs->haveCropBox; - rotate = attrs->rotate; - attrs->resources.copy(&resources); - } else { - // set default MediaBox to 8.5" x 11" -- this shouldn't be necessary - // but some (non-compliant) PDF files don't specify a MediaBox - mediaBox.x1 = 0; - mediaBox.y1 = 0; - mediaBox.x2 = 612; - mediaBox.y2 = 792; - cropBox.x1 = cropBox.y1 = cropBox.x2 = cropBox.y2 = 0; - haveCropBox = gFalse; - rotate = 0; - resources.initNull(); - } - - // media box - readBox(dict, "MediaBox", &mediaBox); - - // crop box - if (readBox(dict, "CropBox", &cropBox)) { - haveCropBox = gTrue; - } - if (!haveCropBox) { - cropBox = mediaBox; - } - else - { - // cropBox can not be bigger than mediaBox - if (cropBox.x2 - cropBox.x1 > mediaBox.x2 - mediaBox.x1) - { - cropBox.x1 = mediaBox.x1; - cropBox.x2 = mediaBox.x2; - } - if (cropBox.y2 - cropBox.y1 > mediaBox.y2 - mediaBox.y1) - { - cropBox.y1 = mediaBox.y1; - cropBox.y2 = mediaBox.y2; - } - } - - // other boxes - bleedBox = cropBox; - readBox(dict, "BleedBox", &bleedBox); - trimBox = cropBox; - readBox(dict, "TrimBox", &trimBox); - artBox = cropBox; - readBox(dict, "ArtBox", &artBox); - - // clip all other boxes to the media box - cropBox.clipTo(&mediaBox); - bleedBox.clipTo(&mediaBox); - trimBox.clipTo(&mediaBox); - artBox.clipTo(&mediaBox); - - // rotate - dict->lookup("Rotate", &obj1); - if (obj1.isInt()) { - rotate = obj1.getInt(); - } - obj1.free(); - while (rotate < 0) { - rotate += 360; - } - while (rotate >= 360) { - rotate -= 360; - } - - // misc attributes - dict->lookup("LastModified", &lastModified); - dict->lookup("BoxColorInfo", &boxColorInfo); - dict->lookup("Group", &group); - dict->lookup("Metadata", &metadata); - dict->lookup("PieceInfo", &pieceInfo); - dict->lookup("SeparationInfo", &separationInfo); - - // resource dictionary - dict->lookup("Resources", &obj1); - if (obj1.isDict()) { - resources.free(); - obj1.copy(&resources); - } - obj1.free(); -} - -PageAttrs::~PageAttrs() { - lastModified.free(); - boxColorInfo.free(); - group.free(); - metadata.free(); - pieceInfo.free(); - separationInfo.free(); - resources.free(); -} - -GBool PageAttrs::readBox(Dict *dict, char *key, PDFRectangle *box) { - PDFRectangle tmp; - double t; - Object obj1, obj2; - GBool ok; - - dict->lookup(key, &obj1); - if (obj1.isArray() && obj1.arrayGetLength() == 4) { - ok = gTrue; - obj1.arrayGet(0, &obj2); - if (obj2.isNum()) { - tmp.x1 = obj2.getNum(); - } else { - ok = gFalse; - } - obj2.free(); - obj1.arrayGet(1, &obj2); - if (obj2.isNum()) { - tmp.y1 = obj2.getNum(); - } else { - ok = gFalse; - } - obj2.free(); - obj1.arrayGet(2, &obj2); - if (obj2.isNum()) { - tmp.x2 = obj2.getNum(); - } else { - ok = gFalse; - } - obj2.free(); - obj1.arrayGet(3, &obj2); - if (obj2.isNum()) { - tmp.y2 = obj2.getNum(); - } else { - ok = gFalse; - } - obj2.free(); - if (ok) { - if (tmp.x1 > tmp.x2) { - t = tmp.x1; tmp.x1 = tmp.x2; tmp.x2 = t; - } - if (tmp.y1 > tmp.y2) { - t = tmp.y1; tmp.y1 = tmp.y2; tmp.y2 = t; - } - *box = tmp; - } - } else { - ok = gFalse; - } - obj1.free(); - return ok; -} - -//------------------------------------------------------------------------ -// PageTransition -//------------------------------------------------------------------------ - -PageTransition::PageTransition(Dict *dict) - : type(Replace), - duration(1), - alignment(Horizontal), - direction(Inward), - angle(0), - scale(1.0), - rectangular(false) -{ - Object dictObj; - Object obj; - - dict->lookup("Trans", &dictObj); - if (dictObj.isDict()) { - Dict *transDict = dictObj.getDict(); - - if (transDict->lookup("S", &obj)->isName()) { - const char *s = obj.getName(); - if (strcmp("R", s) == 0) - type = Replace; - else if (strcmp("Split", s) == 0) - type = Split; - else if (strcmp("Blinds", s) == 0) - type = Blinds; - else if (strcmp("Box", s) == 0) - type = Box; - else if (strcmp("Wipe", s) == 0) - type = Wipe; - else if (strcmp("Dissolve", s) == 0) - type = Dissolve; - else if (strcmp("Glitter", s) == 0) - type = Glitter; - else if (strcmp("Fly", s) == 0) - type = Fly; - else if (strcmp("Push", s) == 0) - type = Push; - else if (strcmp("Cover", s) == 0) - type = Cover; - else if (strcmp("Uncover", s) == 0) - type = Push; - else if (strcmp("Fade", s) == 0) - type = Cover; - } - obj.free(); - - if (transDict->lookup("D", &obj)->isInt()) { - duration = obj.getInt(); - } - obj.free(); - - if (transDict->lookup("Dm", &obj)->isName()) { - const char *dm = obj.getName(); - if ( strcmp( "H", dm ) == 0 ) - alignment = Horizontal; - else if ( strcmp( "V", dm ) == 0 ) - alignment = Vertical; - } - obj.free(); - - if (transDict->lookup("M", &obj)->isName()) { - const char *m = obj.getName(); - if ( strcmp( "I", m ) == 0 ) - direction = Inward; - else if ( strcmp( "O", m ) == 0 ) - direction = Outward; - } - obj.free(); - - if (transDict->lookup("Di", &obj)->isInt()) { - angle = obj.getInt(); - } - obj.free(); - - if (transDict->lookup("Di", &obj)->isName()) { - if ( strcmp( "None", obj.getName() ) == 0 ) - angle = 0; - } - obj.free(); - - if (transDict->lookup("SS", &obj)->isReal()) { - scale = obj.getReal(); - } - obj.free(); - - if (transDict->lookup("B", &obj)->isBool()) { - rectangular = obj.getBool(); - } - obj.free(); - } - dictObj.free(); -} - -PageTransition::~PageTransition() { -} - -//------------------------------------------------------------------------ -// Page -//------------------------------------------------------------------------ - -Page::Page(XRef *xrefA, int numA, Dict *pageDict, PageAttrs *attrsA) { - ok = gTrue; - xref = xrefA; - num = numA; - - // get attributes - attrs = attrsA; - - // get transition - transition = new PageTransition( pageDict ); - - // annotations - pageDict->lookupNF("Annots", &annots); - if (!(annots.isRef() || annots.isArray() || annots.isNull())) { - error(-1, "Page annotations object (page %d) is wrong type (%s)", - num, annots.getTypeName()); - annots.free(); - goto err2; - } - - // contents - pageDict->lookupNF("Contents", &contents); - if (!(contents.isRef() || contents.isArray() || - contents.isNull())) { - error(-1, "Page contents object (page %d) is wrong type (%s)", - num, contents.getTypeName()); - contents.free(); - goto err1; - } - - return; - - err2: - annots.initNull(); - err1: - contents.initNull(); - ok = gFalse; -} - -Page::~Page() { - delete attrs; - delete transition; - annots.free(); - contents.free(); -} - -Links *Page::getLinks(Catalog *catalog) { - Links *links; - Object obj; - - links = new Links(getAnnots(&obj), catalog->getBaseURI()); - obj.free(); - return links; -} - -void Page::display(OutputDev *out, double hDPI, double vDPI, - int rotate, GBool useMediaBox, GBool crop, - GBool printing, Catalog *catalog, - GBool (*abortCheckCbk)(void *data), - void *abortCheckCbkData) { - displaySlice(out, hDPI, vDPI, rotate, useMediaBox, crop, - -1, -1, -1, -1, printing, catalog, - abortCheckCbk, abortCheckCbkData); -} - -void Page::displaySlice(OutputDev *out, double hDPI, double vDPI, - int rotate, GBool useMediaBox, GBool crop, - int sliceX, int sliceY, int sliceW, int sliceH, - GBool printing, Catalog *catalog, - GBool (*abortCheckCbk)(void *data), - void *abortCheckCbkData) { -#ifndef PDF_PARSER_ONLY - PDFRectangle *mediaBox, *cropBox; - PDFRectangle box; - Gfx *gfx; - Object obj; - Annots *annotList; - Dict *acroForm; - int i; - - if (!out->checkPageSlice(this, hDPI, vDPI, rotate, useMediaBox, crop, - sliceX, sliceY, sliceW, sliceH, - printing, catalog, - abortCheckCbk, abortCheckCbkData)) { - return; - } - - rotate += getRotate(); - if (rotate >= 360) { - rotate -= 360; - } else if (rotate < 0) { - rotate += 360; - } - - makeBox(hDPI, vDPI, rotate, useMediaBox, out->upsideDown(), - sliceX, sliceY, sliceW, sliceH, &box, &crop); - cropBox = getCropBox(); - - if (globalParams->getPrintCommands()) { - mediaBox = getMediaBox(); - printf("***** MediaBox = ll:%g,%g ur:%g,%g\n", - mediaBox->x1, mediaBox->y1, mediaBox->x2, mediaBox->y2); - printf("***** CropBox = ll:%g,%g ur:%g,%g\n", - cropBox->x1, cropBox->y1, cropBox->x2, cropBox->y2); - printf("***** Rotate = %d\n", attrs->getRotate()); - } - - gfx = new Gfx(xref, out, num, attrs->getResourceDict(), - hDPI, vDPI, &box, crop ? cropBox : (PDFRectangle *)NULL, - rotate, abortCheckCbk, abortCheckCbkData); - contents.fetch(xref, &obj); - if (!obj.isNull()) { - gfx->saveState(); - gfx->display(&obj); - gfx->restoreState(); - } - obj.free(); - - // draw annotations - annotList = new Annots(xref, catalog, getAnnots(&obj)); - obj.free(); - acroForm = catalog->getAcroForm()->isDict() ? - catalog->getAcroForm()->getDict() : NULL; - if (acroForm) { - if (acroForm->lookup("NeedAppearances", &obj)) { - if (obj.isBool() && obj.getBool()) { - annotList->generateAppearances(acroForm); - } - } - obj.free(); - } - if (annotList->getNumAnnots() > 0) { - if (globalParams->getPrintCommands()) { - printf("***** Annotations\n"); - } - for (i = 0; i < annotList->getNumAnnots(); ++i) { - annotList->getAnnot(i)->draw(gfx, printing); - } - out->dump(); - } - delete annotList; - - delete gfx; -#endif -} - -void Page::makeBox(double hDPI, double vDPI, int rotate, - GBool useMediaBox, GBool upsideDown, - double sliceX, double sliceY, double sliceW, double sliceH, - PDFRectangle *box, GBool *crop) { - PDFRectangle *mediaBox, *cropBox, *baseBox; - double kx, ky; - - mediaBox = getMediaBox(); - cropBox = getCropBox(); - if (sliceW >= 0 && sliceH >= 0) { - baseBox = useMediaBox ? mediaBox : cropBox; - kx = 72.0 / hDPI; - ky = 72.0 / vDPI; - if (rotate == 90) { - if (upsideDown) { - box->x1 = baseBox->x1 + ky * sliceY; - box->x2 = baseBox->x1 + ky * (sliceY + sliceH); - } else { - box->x1 = baseBox->x2 - ky * (sliceY + sliceH); - box->x2 = baseBox->x2 - ky * sliceY; - } - box->y1 = baseBox->y1 + kx * sliceX; - box->y2 = baseBox->y1 + kx * (sliceX + sliceW); - } else if (rotate == 180) { - box->x1 = baseBox->x2 - kx * (sliceX + sliceW); - box->x2 = baseBox->x2 - kx * sliceX; - if (upsideDown) { - box->y1 = baseBox->y1 + ky * sliceY; - box->y2 = baseBox->y1 + ky * (sliceY + sliceH); - } else { - box->y1 = baseBox->y2 - ky * (sliceY + sliceH); - box->y2 = baseBox->y2 - ky * sliceY; - } - } else if (rotate == 270) { - if (upsideDown) { - box->x1 = baseBox->x2 - ky * (sliceY + sliceH); - box->x2 = baseBox->x2 - ky * sliceY; - } else { - box->x1 = baseBox->x1 + ky * sliceY; - box->x2 = baseBox->x1 + ky * (sliceY + sliceH); - } - box->y1 = baseBox->y2 - kx * (sliceX + sliceW); - box->y2 = baseBox->y2 - kx * sliceX; - } else { - box->x1 = baseBox->x1 + kx * sliceX; - box->x2 = baseBox->x1 + kx * (sliceX + sliceW); - if (upsideDown) { - box->y1 = baseBox->y2 - ky * (sliceY + sliceH); - box->y2 = baseBox->y2 - ky * sliceY; - } else { - box->y1 = baseBox->y1 + ky * sliceY; - box->y2 = baseBox->y1 + ky * (sliceY + sliceH); - } - } - } else if (useMediaBox) { - *box = *mediaBox; - } else { - *box = *cropBox; - *crop = gFalse; - } -} - -void Page::processLinks(OutputDev *out, Catalog *catalog) { - Links *links; - int i; - - links = getLinks(catalog); - for (i = 0; i < links->getNumLinks(); ++i) { - out->processLink(links->getLink(i), catalog); - } - delete links; -} - -void Page::getDefaultCTM(double *ctm, double hDPI, double vDPI, - int rotate, GBool useMediaBox, GBool upsideDown) { - GfxState *state; - int i; - - rotate += getRotate(); - if (rotate >= 360) { - rotate -= 360; - } else if (rotate < 0) { - rotate += 360; - } - state = new GfxState(hDPI, vDPI, - useMediaBox ? getMediaBox() : getCropBox(), - rotate, upsideDown); - for (i = 0; i < 6; ++i) { - ctm[i] = state->getCTM()[i]; - } - delete state; -} |